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Osa Weather (Next 3 days): The snow forecast for Osa is: Some drizzle, heaviest during Sat night. Freeze-thaw conditions (max 11°C on Sun morning, min 0°C on Mon night). Winds decreasing (fresh winds from the WSW on Sun night, light winds from the WNW by Mon night).
Osa Weather (Days 4-6): Light rain (total 3.0mm), mostly falling on Thu afternoon. Freeze-thaw conditions (max 9°C on Thu morning, min -1°C on Fri afternoon). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 3 |  | ||||
| Bottom Lift: | 5 | |
Latest snow reports near Osa:
Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  | |  |  | |  | | | |  | |  | |  |  | |
rain shwrs | clear | clear | some clouds | some clouds | some clouds | clear | clear | clear | some clouds | cloudy | some clouds | cloudy | cloudy | light rain | light rain | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | |
max °C | 6 | 11 | 10 | 8 | 6 | 5 | 1 | 5 | 5 | 1 | 7 | 7 | 4 | 9 | 8 | 5 |
min °C | 4 | 8 | 8 | 7 | 5 | 1 | 0 | 3 | 1 | 1 | 4 | 4 | 3 | 6 | 7 | 3 |
0 | 4 | 4 | 3 | 0 | -3 | -2 | -1 | -3 | -3 | 2 | 2 | 1 | 3 | 3 | -1 | |
89 | 83 | 72 | 83 | 80 | 71 | 78 | 70 | 56 | 62 | 48 | 46 | 41 | 47 | 85 | 88 | |
1400 | 1850 | 2150 | 2300 | 1350 | 1150 | 850 | 1000 | 1200 | 1250 | 1500 | 1750 | 2250 | 1750 | 1800 | 1400 | |
 | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — |
 | — | — | 4:59 | — | — | 4:59 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — |
Some drizzle, heaviest during Sat night. Freeze-thaw conditions (max 11°C on Sun morning, min 0°C on Mon night). Winds decreasing (fresh winds from the WSW on Sun night, light winds from the WNW by Mon night).
Light rain (total 3.0mm), mostly falling on Thu afternoon. Freeze-thaw conditions (max 9°C on Thu morning, min -1°C on Fri afternoon). Wind will be generally light.
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 1 cm |
| Last snowfall: | 4 Dec 2025 |
| Snow Alerts | Create Alert |
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.1 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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